Cleanup for WARNS 6.

Cleanup for WARNS 3.

Change the type of psaddr_t from void* to uintptr_t. A pointer
type cannot be made wider to allow ILP32 platforms to target
LP64 platforms.

- Restore kse.h in this directory so other tools don't find it by mistake.
- Restore the ability to debug kse coredumps in 8.0.

Suggested by: marcel

Use linker set to collection all target operations.

get thread signal info.

Use ps_linfo to retrieve LWP info.

Replace ptrace syscall with ps_lgetgregs to check a LWP's existence.

Always clear thread info buffer to zero.

Add support for XMM registers in GDB for x86 processors that support
SSE (or its successors).

Reviewed by: marcel, davidxu
MFC After: 2 weeks

Remove unused variables.

Sync with debugger code in libthr.

Export thread address.

Plug a memory leak in error case.

1. Use libpthread's exported symbols to calcuate offset in data structure
2. Enable TLS debugger support.

1.Use new way to check if a thread is in critical region, defer suspending
if it is true.
2.Add thread_db api td_thr_tls_get_addr to get tls address, the real code
is commented out util tls patch

1.Use new way to check if a thread is in critical region, defer suspending
if it is true.
2.Add thread_db api td_thr_tls_get_addr to get tls address, the real code
is commented out util tls patch is committed.

Reviewed by: deischen

show more ...

s/TMDF_DONOTRUNUSER/TMDF_SUSPEND/g

Dicussed with: deischen

Add missing thread suspension/resumption code, fix a bug in pt_thr_sstep,
don't overwrite other debug flags.

Add rudimentary support and stubs for libthr and libc_r on alpha, amd64,
i386, ia64 and sparc64. Add stubs for alpha, amd64, ia64 and sparc64 for
libpthread.

Restructure the source files to avoid un

Add rudimentary support and stubs for libthr and libc_r on alpha, amd64,
i386, ia64 and sparc64. Add stubs for alpha, amd64, ia64 and sparc64 for
libpthread.

Restructure the source files to avoid unnecessary use of subdirectories
that also force us to use non-portable compilation flags to deal with
the uncommon compilation requirements (building archive libraries for
linkage into a shared library).

The libpthread support has been copied from the original local and
cleaned-up to make them WARNS=2 clean.
that also force us to use non-portable compilation flags to deal with
the uncommon compilation requirements (building archive libraries for
linkage into a shared library).

The libpthread support has been copied from the original local and
cleaned-up to make them WARNS=2 clean.

Tested on: amd64, i386, ia64

show more ...

lib: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
pr

lib: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

show more ...

libthread_db: unbreak build due to sign/unsigned comparison.

Reported by: lwshu

libpthread_db: undo the memset size change.

I inadvertedly soubled the size of the memset without noticing the
start address had changed. The size for the memset in pt_map_thread()
shouldn't actuall

libpthread_db: undo the memset size change.

I inadvertedly soubled the size of the memset without noticing the
start address had changed. The size for the memset in pt_map_thread()
shouldn't actually match the reallocarray() so undo that part of r317200.

This is a re-commit of r317201 to clarify the log.

X-MFC with: r317200

show more ...

Revert r317201 to fix the log.

libpthread_db: leave the memset size from unchanged.

The size for the memset in pt_map_thread() shouldn't actually match the
reallocarray() so undo that part of r317200.

X-MFC with: r317200

libthread_db: unsign map_len and use reallocarray(3).

Lengths are not negative, so map_len should be unsigned. Unsign the
corresponding indexes too and bring a small use of reallocarray(3).

Reorder

libthread_db: unsign map_len and use reallocarray(3).

Lengths are not negative, so map_len should be unsigned. Unsign the
corresponding indexes too and bring a small use of reallocarray(3).

Reorder the memset to be consistent with the realloc: it appears we
were only clearing half the memory in pt_map_thread().

MFC after: 2 weeks

show more ...